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[ietf-clear] Re: Make CSV backwards compatible with legacy SPF records?

2004-12-09 11:11:49
To try and keep this post a little bit more on-topic for this list,
does anyone have any good data on what real-world HELO domains look
like?

Tony Finch compiled some data which he may post here.  The domains are
all over the case.  Hotmail is the largest domain where all of the
mail clients do a base domain HELO as hotmail.com, but they're hardly
the only ones.  There are also a surprising number senders of real
mail whose HELO doesn't match the IP of the host, or whose HELO has no
A record at all.


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John R. Levine, IECC, POB 727, Trumansburg NY 14886 +1 607 330 5711
johnl(_at_)iecc(_dot_)com, Mayor, http://johnlevine.com, 
Member, Provisional board, Coalition Against Unsolicited Commercial E-mail